Two Leaders Merge to Create Industry's Largest, Most Comprehensive Provider of Stormwater Treatment Solutions; Customers will Benefit from New Technologies and Expanded Service

Vortechnics and Stormwater Management Announce Management Structure and Integration Details

SCARBOROUGH, Maine, April 20 /PRNewswire/ -- Vortechnics Inc. and Stormwater Management Inc., the two leading providers of stormwater treatment systems, announced today that they are integrating their operations. Theannouncement was made following last week's acquisition of Stormwater Management by the parent company of Vortechnics, CONTECH CONSTRUCTION PRODUCTS INC., which acquired Vortechnics in March 2004.

Effective immediately, Vortechnics and Stormwater Management have merged and now operate under the direction of one management team, which has more than 60 years of combined experience in the stormwater industry. David R.
Miley was named the chief executive officer of the newly combined company, and David Pollock was appointed chief operating officer. Both were leaders of their respective companies -- Miley was with Vortechnics and Pollock was with Stormwater Management -- prior to the acquisition. Additional members of the newly formed management team include: Eric Roach, chief financial officer; Jim Lenhart, chief technology officer; Lanz Fritz, vice president of operations; Fran Tighe, vice president of development; and Tom Gorrivan as national sales
manager. Several remaining management positions will be announced in the coming weeks.

"This merger is a solid strategic fit considering the complementary nature of our two product lines and core competencies. Our customers will see an immediate impact -- with more technology choices, expanded technical expertise, and more convenient sales support and service," Miley said.
"But the similarities between Vortechnics and Stormwater Management extend far beyond our markets, products and customers. We share a common commitment to cleaning up the nation's waters and an unrelenting passion for developing
cutting-edge, engineered solutions that make both environmental and economic sense."

Like Vortechnics, Stormwater Management has been providing solutions to engineers, contractors, developers and site owners for more than a decade.

Together, the two companies have combined revenues approaching $60 million and have installed thousands of systems throughout the United States and Canada.

The merger also brings together the industry's two leaders in stormwater research and product development, with two state-of-the-art stormwater testing and development labs and a combined staff of almost 160 employees serving customers from coast to coast.

"The stormwater treatment market has been rapidly evolving, and our two companies -- Stormwater Management and Vortechnics -- have been at the forefront of innovation. By joining together we will be able to provide the civil engineering community with the most advanced and comprehensive line of
stormwater treatment options available," Pollock said.

The new company will be headquartered in Scarborough, Maine, but sales offices and facilities for both companies will remain as they are.

Together, the companies now have an unparalleled portfolio of powerful brands, including the Vortechs System, StormFilter, VortSentry and StormScreen. A company name representing the shared vision, values and technologies of both companies is
in development and will be announced in the coming weeks.
"We are absolutely committed to the communities in which we live and work.

So whether it's Portland, Maine or Portland, Oregon, we will continue to be a vital contributor and strong corporate citizen in the places our employees call home," Miley said.

With products serving the municipal, industrial, residential and
commercial construction markets, both Stormwater Management and Vortechnics have been pioneers in the treatment of stormwater pollution, developing technological innovations that are used to clean stormwater that runs off parking lots, roads and other impervious surfaces. If not removed from this
runoff, the contaminants can accumulate in surface waters damaging ecosystems and polluting watersheds.

Background Information
About Vortechnics Inc.
As the leading provider of engineered stormwater management
solutions, Vortechnics has set the industry standard with its emphasis on technicalcustomer service, research and development, and ease of installation and maintenance. The company's comprehensive suite of stormwater treatment
products capture pollutants from runoff and protect waterways from damaging, contaminated stormwater flows. Founded in 1988 and part of the CONTECH family of companies, Vortechnics has installed thousands of systems throughout
the United States and Canada. For more information, visit
http://www.vortechnics.com or call 877-907-8676.

About Stormwater Management Inc.
As the pioneer of stormwater filtration technology, Stormwater
Management, Inc. provides environmentally sound stormwater treatment products that are backed by the experience gained during a decade of providing clean water. The company offers a patented, cost-effective and proven line of stormwater treatment products to meet national and local regulatory requirements.

Celebrating a decade of clean water, Stormwater Management helps customers across the United States achieve their water quality goals by removing pollutants to keep our waterways clean. For more information, call (800) 548- 4667 or visit http://www.stormwaterinc.com.

About CONTECH
CONTECH is a leading civil engineering site solutions products and services company. Privately-owned and headquartered in Middletown, Ohio,

CONTECH is the only nationwide provider of corrugated metal and plastic pipe, detention/retention systems, geogrid and geotextile materials, erosion control products, concrete arch systems, retaining wall systems and bridge structures.
Its product portfolio is based on more than a century of research and practical field experience serving the highway, drainage, sewage and site- improvement markets. More information on CONTECH is available at http://www.contech-cpi.com.